Electrical power systems having reactive power and harmonic support components

1. An electrical power system connectable to a power grid, comprising: a cluster of electrical power subsystems, each of the electrical power subsystems comprising a power converter electrically coupled to a generator having a generator rotor and a generator stator, each of the electrical power subsystems defining a stator power path and a converter power path for providing power to the power grid, each of the electrical power subsystems further comprising a transformer; a subsystem breaker configured with each of the electrical power subsystems; a cluster power path extending from each subsystem breaker for connecting the cluster of electrical power subsystems to the power grid; and a reactive power compensation inverter electrically coupled within one of the electrical power subsystems between the corresponding generator and the corresponding transformer, the reactive power compensation inverter including a power source, first and second switching elements in series with each other, and a capacitor positioned between the power source and the first and second switching elements such that the reactive power compensation inverter increases the reactive power level in the electrical current flowing through at least one of the corresponding stator power path or the corresponding converter power path.

2. The electrical power system of claim 1 , wherein the first and second switching elements are insulated-gate bipolar transistors.

3. The electrical power system of claim 1 , further comprising an active harmonic filter electrically coupled within the electrical power system, the active harmonic filter operable to reduce harmonics in the electrical current flowing to the power grid.

4. The electrical power system of claim 3 , wherein the active harmonic filter comprises a third switching element and a fourth switching element in series with each other.

5. The electrical power system of claim 4 , wherein the third switching element and fourth switching element are metal-oxide-semiconductor field-effect transistors.

6. The electrical power system of claim 5 , wherein the metal-oxide-semiconductor field-effect transistors are silicon carbide metal-oxide-semiconductor field-effect transistors.

7. The electrical power system of claim 3 , wherein the reactive power compensation inverter and the active harmonic filter are electrically coupled at the same location within the electrical power system.

8. The electrical power system of claim 3 , wherein the reactive power compensation inverter and the active harmonic filter are electrically coupled at different locations within the electrical power system.

9. The electrical power system of claim 3 , wherein at least one of the reactive power compensation inverter or the active harmonic filter is configured as an H-bridge.

10. The electrical power system of claim 1 , further comprising a cluster transformer for connecting each cluster of electrical power subsystems to the power grid and a cluster switch configured with the cluster transformer.

11. The electrical power system of claim 1 , wherein the transformer of each electrical power subsystem is a three-winding transformer between the stator power path, the converter power path, and the cluster power path.

12. An electrical power system connectable to a power grid, comprising: an electrical power subsystem, the electrical power subsystem comprising a power converter electrically coupled to a generator having a generator rotor and a generator stator, the electrical power subsystem defining a generator power path from the stator and the power converter for providing power to the power grid, the electrical power subsystem further comprising a transformer; a grid power path extending from the transformer for connecting the electrical power subsystem to the power grid; and a reactive power compensation inverter electrically coupled within one of the electrical power subsystems between the corresponding generator and the corresponding transformer, the reactive power compensation inverter including a power source, first and second switching elements in series with each other, and a capacitor positioned between the power source and the first and second switching elements such that the reactive power compensation inverter increases the reactive power level in the electrical current flowing through at least one of the corresponding stator power path or the corresponding converter power path.

13. The electrical power system of claim 12 , wherein the first and second switching elements are insulated-gate bipolar transistors.

14. The electrical power system of claim 12 , further comprising an active harmonic filter electrically coupled within the electrical power system, the active harmonic filter operable to reduce harmonics in the electrical current flowing to the power grid.

15. The electrical power system of claim 14 , wherein the active harmonic filter comprises a third switching element and a fourth switching element in series with each other.

16. The electrical power system of claim 15 , wherein the third switching element and fourth switching element are metal-oxide-semiconductor field-effect transistors.

17. The electrical power system of claim 14 , wherein the reactive power compensation inverter and the active harmonic filter are electrically coupled at the same location within the electrical power system.

18. The electrical power system of claim 14 , wherein the reactive power compensation inverter and the active harmonic filter are electrically coupled at different locations within the electrical power system.